The only big name course I can recall that I would really like to have had a shot to redo was Medinah No. 3, for personal reasons. It was the first course I played and where I fell in love with golf.
I think Rees did a nice job there, and it was probably what they wanted or needed for their major tournaments, but somehow, would have liked the chance to perhaps keep the essence of the place while improving it.
Generally, I think the big name remodel jobs are minefields! There is something to be said for remodeling something that no one has any expectations for (like the Weeks Park course in Wichita Falls, TX we are opening up tomorrow) and pleasantly surprising them.
And, its always a little nerve wracking to go to some club that I generally think is nearly perfect and start suggesting changes in hopes of making it more perfect. I mean, there is no where to go but down sometimes. They can often be made different, seldom a heck of a lot better. And with high expectations, its harder to pleasantly surprise and easier to dissapoint.